I feel like looking at this is going to reduce a sanity meter or something.
Anyway, great job with the caustics. I'd say to watch the density of the effect - how spaced out the actual caustics are makes me think that this is meant to be a wee critter, but the wind wave density up top makes me think it's meant to be an incredibly large one.
It's the opposite of a big deal. You could always do the scale cheat sheet and throw in some birds. Underwater. It'll work.
i learned a new word! yes its not meant to be very big, since i did copy the light patterns from pictures of people underwater, but i couldn't find good reference for the water meniscus at the top. now that i look at it i probably shouldn't have had so many light panes filtering down.